EP0398041A2 - Central de commutation avec un montage pour tester l'interconnexion du chemin de parole d'un dispositif de couplage - Google Patents

Central de commutation avec un montage pour tester l'interconnexion du chemin de parole d'un dispositif de couplage Download PDF

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Publication number
EP0398041A2
EP0398041A2 EP90107681A EP90107681A EP0398041A2 EP 0398041 A2 EP0398041 A2 EP 0398041A2 EP 90107681 A EP90107681 A EP 90107681A EP 90107681 A EP90107681 A EP 90107681A EP 0398041 A2 EP0398041 A2 EP 0398041A2
Authority
EP
European Patent Office
Prior art keywords
test
line
multiplex
lines
interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90107681A
Other languages
German (de)
English (en)
Other versions
EP0398041A3 (fr
EP0398041B1 (fr
Inventor
Werner Dipl.-Ing. Nagler
Rostislav Dipl.-Ing. Kaderka
Frank Dipl.-Ing. Marnet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0398041A2 publication Critical patent/EP0398041A2/fr
Publication of EP0398041A3 publication Critical patent/EP0398041A3/fr
Application granted granted Critical
Publication of EP0398041B1 publication Critical patent/EP0398041B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/24—Automatic arrangements for connection devices
    • H04Q1/245—Automatic arrangements for connection devices in time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/06—Time-space-time switching

Definitions

  • the invention relates to a circuit arrangement for testing the speech path connection of a coupling arrangement of a digital multiplex switching center, which is part of a line group of this switching center for the connection of subscriber lines and / or connecting lines, this line group being under the control of a group control communicating with the central control of the switching center , which influences the coupling arrangement in cooperation with a coupler control and the other components of the connection group.
  • EWSD connection groups LTG Siemens publication A 30 808-X 2720-X-1-18
  • all components of such a connection group are connected to the group control via a time-division multiplex line.
  • the 32 time channels formed on this time-division multiplex line are assigned to the individual structural units, which accordingly can only exchange signals with the group controller via these time channels.
  • additional test channels are formed on this time-division multiplex line, on which the switching functions thereof are tested via a separate connection of the switching arrangement.
  • test connections are switched through by the coupling arrangement and certain test bit patterns are sent and checked on the receiving end for freedom from errors.
  • the object of the invention is now to provide a more favorable concept in this regard.
  • the digital time-division switching center shown in FIG. 1 consists of a number of line trunk groups LTG1 to LTGn, a double switching network SN0 / SN1 and a coordination processor.
  • the line groups LTG1 to LTGn are used to connect subscriber lines and / or connecting lines PCMe0 to PCMe11. They have connection units LTU1 to LTUx, which in turn contain the subscriber sets or line sets not shown here.
  • a further component of the line trunk groups are a switching arrangement GS with its own coupler control GSC, which mediates between the time channels formed on the mentioned connecting lines and the central switching network SN0 / SN1 causes.
  • the line trunk groups also contain a signal unit SU and an interface unit LIU, which represents the interface between the line trunk group and the switching network SN0 / SN1.
  • the components of the line trunk groups are each under the control of a group controller GP, which in turn communicates via the central switching network with the aforementioned coordination processor CP, ie the central controller of the exchange.
  • the coupling arrangement GS is shown in more detail in a special embodiment in FIG.
  • the centerpiece of this switching arrangement which represents a time stage, is a voice memory SM, on the input side of which a time-division multiplex line for incoming transmission direction SPHI via a series-parallel converter SPC, which is provided by the connection units LTU according to FIG. 1 or to a lesser extent by the central switching network SN0 / SN1 are to be expected.
  • a series-parallel converter SPC which is provided by the connection units LTU according to FIG. 1 or to a lesser extent by the central switching network SN0 / SN1 are to be expected.
  • time-division multiplex lines SPHO are connected via a parallel-series converter PSC, which are to be thought of as leading to the mentioned connection units LTU or to the central switching network SNO / SN1.
  • the coupler control designated by GSC in FIG. 1 is shown in FIG. 2 broken down into a GS / H controller with associated hold memory and a GS / ⁇ P coupler control microprocessor.
  • the mentioned control also influences a device CATU, which serves for the damping and possibly code conversion of code representation according to the ⁇ -law into code representation according to the A-law or vice versa, and a conference device CONU.
  • the actual test module provided in accordance with the invention is designated STU in FIG. It lies in a line loop formed by the multiplex lines SPHIP and SPHOP, which in the same way as the multiplex lines SPHI and SPHO, on which voice information is transmitted, with the series-parallel converter SPC and the parallel-series converter PSC and thus with the coupling arrangement in Connect.
  • the STU test module must therefore have a serial interface for these SPAIP and SPAOP time-division multiplex lines.
  • test module STU is located on a bus line B, to which the mentioned parts GS / H and G / ⁇ P of the coupler control as well as a signal multiplexer SMX are connected, via which signaling characters are exchanged with the coordination processor CP.
  • the test module STU which is connected to bus B via a parallel interface, is directly influenced by the coupler control via this bus.
  • test assembly STU The essential components of the test assembly STU are shown in FIG.
  • the test module STU furthermore has an output memory OMEM, from which data can reach the test multiplex line SPHIP in FIG. 1 via a parallel-series converter P / S, and an input memory IMEM, in which data from the test multiplex line SPHOP in FIG. 2 and above a series-parallel converter S / P data can be written.
  • the series-parallel converters and parallel-series converters that form the above-mentioned interface are equipped so that a mirror function can be carried out, that is, data read from the OMEM memory can be returned directly to the IMEM memory.
  • test module STU has an input data evaluation EW.
  • the STU test module can be used to test both normal subscriber connections and conference connections as well as audio overlays in conference connections.
  • a self-test of the test module then follows, for which the mirror function mentioned is switched and test data supplied by the switching matrix controller via the processor interface PS is written into the output memory OMEM, read out from there and entered into the input data memory IMEM via the mirror.
  • test data are then switched through from the OMEM memory via the coupling arrangement GS and transmitted back to the test module STU via the output-side multiplex line SPHOP. There, they are compared by the input data evaluation module EW with data that came into the memory IMEM in the course of the described mirroring and that represent the target data. In the event of a deviation, a message is sent to the coupler control GS.
  • the concept according to the invention means that the control tasks have been shifted from the group control to the periphery, and the coupler control GSC is also largely relieved. It is therefore possible to test the voice channels on a much larger scale, and error detection is also carried out very quickly. Because on the multiplex line 32 time slots are available, the voice memory SM or its hold memory GS / H can be checked over their entire memory areas and not just on a random basis.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
EP90107681A 1989-05-16 1990-04-23 Central de commutation avec un montage pour tester l'interconnexion du chemin de parole d'un dispositif de couplage Expired - Lifetime EP0398041B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915927 1989-05-16
DE3915927A DE3915927A1 (de) 1989-05-16 1989-05-16 Schaltungsanordnung zur pruefung der sprechwegedurchschaltugn einer koppelanordnung

Publications (3)

Publication Number Publication Date
EP0398041A2 true EP0398041A2 (fr) 1990-11-22
EP0398041A3 EP0398041A3 (fr) 1992-08-19
EP0398041B1 EP0398041B1 (fr) 1995-12-27

Family

ID=6380747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107681A Expired - Lifetime EP0398041B1 (fr) 1989-05-16 1990-04-23 Central de commutation avec un montage pour tester l'interconnexion du chemin de parole d'un dispositif de couplage

Country Status (5)

Country Link
EP (1) EP0398041B1 (fr)
AT (1) ATE132314T1 (fr)
DE (2) DE3915927A1 (fr)
ES (1) ES2081316T4 (fr)
GR (1) GR3018555T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0610672A3 (en) * 1993-01-13 1995-11-29 Nec Corp Time division switch.
EP0516079A3 (en) * 1991-05-27 1996-10-30 Fujitsu Ltd Digital signal transmission system having monitor equipment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2621688B2 (ja) * 1991-05-13 1997-06-18 株式会社船井電機研究所 有線又は無線受信機
DE4317367C1 (de) * 1993-05-25 1994-08-25 Siemens Ag Koppelnetz für eine digitale Zeitmultiplex-Fernsprechvermittlungsstelle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156110A (en) * 1976-03-05 1979-05-22 Trw Inc. Data verifier
DE2905426C2 (de) * 1979-02-13 1986-07-10 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Prüfung der Funktionsfähigkeit von im Zusammenhang mit der Herstellung von Konferenzverbindungen ausgenutzten Sprachspeichern und übrigen Einrichtungen einer PCM-Zeitmultiplex-Vermittlungseinheit
JPS6148266A (ja) * 1984-08-15 1986-03-08 Fujitsu Ltd 時分割多重回線折返試験方法
ES2088399T3 (es) * 1989-09-29 1996-08-16 Siemens Ag Disposicion de circuito para la verificacion de partes de una central digital de conmutacion de telecomunicaciones multiplex por division de tiempo, especialmente una central de conmutacion telefonica.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516079A3 (en) * 1991-05-27 1996-10-30 Fujitsu Ltd Digital signal transmission system having monitor equipment
EP0610672A3 (en) * 1993-01-13 1995-11-29 Nec Corp Time division switch.

Also Published As

Publication number Publication date
ES2081316T4 (es) 1997-04-01
DE3915927A1 (de) 1991-01-31
EP0398041A3 (fr) 1992-08-19
EP0398041B1 (fr) 1995-12-27
DE59009995D1 (de) 1996-02-08
GR3018555T3 (en) 1996-03-31
ATE132314T1 (de) 1996-01-15
ES2081316T3 (es) 1996-03-01

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